The plan is 455, but a 400 at the right price will fill the need. Honestly I have a buddy with a free running SBC that I'll probably run while I build a nice Pontiac motor. I find restorations you can drive move faster for myself and knowing the SBC will be temporary is clearing my conscience.

And I am in the Northeast, so I know the rust pains very well, as my name implies I am big into Broncos and well...yeah they rot.